ok well ive had my car turboed for about a month now and ive just started to notice sum smoke after i get on it. i have a 3an line into a t3/to4e turbo 60/63 trim. now there is sum oil on the bottem of the turbo looks like its leaking sum from where the two halfs of the turbo meet. also my oil pressure is up arouind 80psi at full throttle, and ive seen alot sayin that it shouldnt be over 60psi but i just want more imput b4 i put a restirctor on there.

also i dont think its related but when im at idle my boost pressure is -16 insted of the -20 that it was when i first put everything together i duno if this is a big deal or not but any help would be great.

thanks in advance

 

I have the exact same situation, except I have a BB center section. Mine started smoking a little at first and it kept getting worse. Now its bad somedays and not so much some days. Id like to know too. I know BB turbos only use oil for lubrication and not cooling, so they require less oil....

 

bump for more info please

 

i have a -3 an line for my t3/t04e 57 trim and i dont use a restrictor, turbo doesnt spit out any oil either, could it be your drain line is kinked? As for turbo oil pressure i beleive you are right the turbo isnt made to see any more than 60psi of oil pressure.

 

Hmm... Interesting how lately I've been seeing these smoking symptoms on many T3/T04 Journal bearing setups. The issue I have found SO FAR has been the Oil drain degree angle, and/or the inline feed line location itself. 60-75psi on oil pressure is about normal, but 80 is a little on the worrysome side.

A restrictor on these Journal bearing units is only going to worsen the problem if using anything larger than -4AN line. These restrictors are to really REGULATE oil pressure to a specific pressure AT THE TURBO, to maintain consistancy, which is needed on the Ball-bearing cartridges. The Journal Bearing cartridges need a good supply of oil to create that layer of protection needed on the thrust bearings.., unlike the Ball-bearing cartridges, which depend upon coolant to keep temps down and protected..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">

A restrictor on these Journal bearing units is only going to worsen the problem if using anything larger than -4AN line. </TD></TR></TABLE>

So this means a Garrett T3/T04E w/ a -4an or smaller line shouldn't be using an oil restrictor?

Thanks,
Jim

 

you are always supose to run a restrictor. our engine have high oil pressure. which wil eventuly lead to premature ware on the turbo seals.
i run a -3 line with a .06 restrictor built into the line

the correct restrictor for a t seris turbo is .06 and .035 for a gt turbo

this is the easy way

http://www.atpturbo.com/Mercha...e=BCS
http://www.atpturbo.com/Mercha...e=BCS


Modified by riceball777 at 9:40 PM 5/29/2006


Modified by riceball777 at 9:41 PM 5/29/2006

 

i'm with rice ball on this. 75-80 psi is a lot of pressure. i'm running the one from atp turbo on my bb turbo no trouble so far.

 

i have a -3 feed line on my t3/t04e, and before i put the restrictor on it it would have some oil buildup on the bottom of the turbo.

after the restrictor, it hasnt given me a problem.

 

In some cases a restrictor has worked, but only due to where the oil feed location is. For a -4AN, I typically would use only -3AN, but no... I wouldn't use one on either my journal bearing, but i would on my ball-bearing setups.

.006" restrictor CAN be used if needed, but only on a -4AN. It is not universal for all turbos.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">In some cases a restrictor has worked, but only due to where the oil feed location is. For a -4AN, I typically would use only -3AN, but no... I wouldn't use one on either my journal bearing, but i would on my ball-bearing setups.

.006" restrictor CAN be used if needed, but only on a -4AN. It is not universal for all turbos.</TD></TR></TABLE>

you mean .060"

 

both shodan and riceball have good points. it does matter were the source is located (i.e.-top of oil pump, back of block at the oil pressure sensor, or using a sandwich plate). all require different restrictor or none at all. when we had our turbos tested, they were tested up to 40-45 psi of pressure. but yes it does differ from source. i added a restrictor with a 1/16" hole (.0625). works better than before. my brother had his coming off the pump and pressure was crazy (70-80psi and blowing the seals like a champ) added a needle valve and guage to regulate pressure just before the turbo (seen here


best of luck,
brett